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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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Class Information
Number: 451/400
Name: Abrading > Work holder > Work rotating > Rotary work holder > Orbital movement
Description: Rotary work holder which revolves in an orbit about a center outside itself.










Patents under this class:

Patent Number Title Of Patent Date Issued
8414360 Double side polishing apparatus and carrier therefor Apr. 9, 2013
8202140 Wafer polishing carrier apparatus and chemical mechanical polishing equipment using the same Jun. 19, 2012
7946325 Device and method for blocking optical lens May. 24, 2011
7008308 Wafer carrier Mar. 7, 2006
6840722 Machining apparatus and machining method Jan. 11, 2005
6439984 Molded non-abrasive substrate carrier for use in polishing operations Aug. 27, 2002
6350187 Abrasive machine Feb. 26, 2002
6296554 Non-circular workpiece carrier Oct. 2, 2001
6231427 Linear polisher and method for semiconductor wafer planarization May. 15, 2001
6030278 Surface machining method and apparatus Feb. 29, 2000
6030280 Apparatus for holding workpieces during lapping, honing, and polishing Feb. 29, 2000
5888128 Hand grinder Mar. 30, 1999
5471900 Method for turning a workpiece Dec. 5, 1995
5441442 Method of manufacturing a plate having a plane main surface, method of manufacturing a plate having parallel main surfaces, and device suitable for implementing said methods Aug. 15, 1995
5042204 Finishing machine for trochoidal surfaces Aug. 27, 1991
4996798 Ultra-precision lapping apparatus Mar. 5, 1991
4891914 Computer controlled universal grinder and method for grinding trochoidal and circular bearing races Jan. 9, 1990
4650064 Substrate rotation method and apparatus Mar. 17, 1987
4617762 Cam controlled machine for forming non-standard surfaces Oct. 21, 1986
4615145 Apparatus for mechanically finishing workpieces Oct. 7, 1986
4608784 Work spindle device Sep. 2, 1986
4428163 Shaping machine Jan. 31, 1984
4287687 Variable work holding device for grinding gemstones Sep. 8, 1981
3930343 Device for mounting specimens Jan. 6, 1976











 
 
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